. >>> some south korean war veterans are questioning why 85- year-old meryll newman visited south korea. last week north korea released this video of him confessing to crimes during the war. he acted as an advisor for korean fighters called the white tigers. former members of the white tigers say they are still the most despised and feared in the north. in fact, one korean general who escaped said he would never go back. >> in science, americans are in 22nd place just below average. and in math 29th with 28 countries ahead of the u.s. students from asian nations were at the top in all three categories. >>> new at 10:00, ballerinas taking center stage in a special holiday performance of the nutcracker. >> the whole land was in celebration for clara and the nutcracker. >> reporter: san francisco ballet dancers have been visiting the children's hospital. >> tons of snow flakes dancing around. see they're all on points. >> ballet. >> it's a great reminder for us why we're really out there and it brings the joy to the children. so, that's what nutcracker is all about. >> the first american p